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Piezometer at inclined angle

Piezometer at inclined angle

Piezometer at inclined angle

Does anyone have experience installing a 19mm VW piezometer on a sloped plane? Is there industry references for drilling or direct push?
Expected water head = 10' to 30'.
Say, 30 degrees from vertical.
Target depth = 45 ft, soil strata is layered sandy-silt and sandy-clay, Nspt = 10 to 30.

RE: Piezometer at inclined angle

Just yesterday, I was looking for information on vibrating wire peizometers for another project, and came across this:


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RE: Piezometer at inclined angle

Vwp installs are either done by a conventional soils drill or cpt machine.

Cpt method has a modified cone tip vwp pushed to a target depth and rods retracted. The hole is topped up with granular bentonite.

Conventional drilling method installs the vwp upsidedown in a sand pack with a low permeability seal extended to surface.

You can find guidance from manufacturers websites, the brands I am familiar with is RST, Roctest, and GMK. They all come with varying pressure ranges which affect the accuracy.

RE: Piezometer at inclined angle

ATSE (or others) - what's the purpose or benefit of installing an inclined piezometer?


RE: Piezometer at inclined angle

Trying to install piezos below a canal with slopes sides (or, alternatively a structure), where interior access is not possible, and the soil properties are varied in a horizontal plane.

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